As the Democratic National Convention continues, former President Bill Clinton and vice presidential candidate Joe Biden are scheduled to address the delegates tonight. As Biden rehearses, some concerns remain that the former president may not have put his wife's bruising primary fight behind him.  

Bill Clinton's friends insist that, like his wife, he's truly ready to bury the hatchet. Former Hillary Clinton campaign chairman Terry McAuliffe said, "I speak to the president frequently, every day, and I know his mindset is the past is the past and we have to move forward."

Yet on the eve of his convention speech, the former president raised a question that prompted some to wonder whether he's really prepared to endorse Barack Obama (web|news|bio) : "Candidate X agrees with you on everything, but you don't think that person can deliver on anything. Candidate Y disagrees with you on half the issues, but you believe that on the other half, the candidate will be able to deliver. For whom will you vote?"

Whether or not that was one last lament that his wife would have been the better nominee, associates promise that tonight he will play the dutiful role of Unifier in Chief. Meanwhile, vice presidential candidate Joe Biden has been walking through the Pepsi Center and preparing for his speech this evening.

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